Easy to Print & Excellent Mechanic PerformanceImproved based on ordinary PLA, Upgraded PLA Filament has better toughness and higher strength while maintaining the characteristic of easy to print.More durable and not easy to break with gorgeous smooth printing effect. User-friendly for beginners. Dimensional Tolerance Consistency2 Spools in total, 1 kg spool (2.2lbs) per spool with Accuracy +/- 0.03 mm, eSUN Upgraded PLA Filament 1.75mm 3D printer filament are produced with minimum tolerance and low warping to ensure consistent feeding and stable prints. Suitable for almost all 1.75mm FDM 3D printers. Tangle Free & Clog Free2 rolls of 1KG 3D printer filament, perfect roundness and very tight diameter tolerance, good winding, does not overlap or tangle. Melt well, feed smoothly and constantly without clogging the nozzle or extruder.No bubbles, less stringing, high successful printing rate. Cost-effective & Wide ApplicationGood layer adhesion performance meets your d